Cita APA (7a ed.)

Birch, A. H. (1998). The British system of government (10th ed.). Routledge.

Cita Chicago Style (17a ed.)

Birch, Anthony Harold. The British System of Government. 10th ed. London ; New York: Routledge, 1998.

Cita MLA (8a ed.)

Birch, Anthony Harold. The British System of Government. 10th ed. Routledge, 1998.